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| -rw-r--r-- | docs/usecases/hgw.md | 497 | ||||
| -rw-r--r-- | docs/usecases/homegateway.rst | 285 | ||||
| -rw-r--r-- | docs/usecases/index.rst | 2 |
3 files changed, 498 insertions, 286 deletions
diff --git a/docs/usecases/hgw.md b/docs/usecases/hgw.md new file mode 100644 index 00000000000..0b659e9f818 --- /dev/null +++ b/docs/usecases/hgw.md @@ -0,0 +1,497 @@ +Using VPP as a Home Gateway +=========================== + +Vpp running on a small system (with appropriate NICs) makes a fine +home gateway. The resulting system performs far in excess of +requirements: a debug image runs at a vector size of \~1.2 terminating +a 150-mbit down / 10-mbit up cable modem connection. + +At a minimum, install sshd and the isc-dhcp-server. If you prefer, you +can use dnsmasq. + +System configuration files +-------------------------- + +/etc/vpp/startup.conf: + + unix { + nodaemon + log /var/log/vpp/vpp.log + full-coredump + cli-listen /run/vpp/cli.sock + startup-config /setup.gate + poll-sleep-usec 100 + gid vpp + } + api-segment { + gid vpp + } + dpdk { + dev 0000:03:00.0 + dev 0000:14:00.0 + etc. + } + + plugins { + ## Disable all plugins, selectively enable specific plugins + ## YMMV, you may wish to enable other plugins (acl, etc.) + plugin default { disable } + plugin dpdk_plugin.so { enable } + plugin nat_plugin.so { enable } + ## if you plan to use the time-based MAC filter + plugin mactime_plugin.so { enable } + } + +/etc/dhcp/dhcpd.conf: + + subnet 192.168.1.0 netmask 255.255.255.0 { + range 192.168.1.10 192.168.1.99; + option routers 192.168.1.1; + option domain-name-servers 8.8.8.8; + } + +If you decide to enable the vpp dns name resolver, substitute +192.168.1.2 for 8.8.8.8 in the dhcp server configuration. + +/etc/default/isc-dhcp-server: + + # On which interfaces should the DHCP server (dhcpd) serve DHCP requests? + # Separate multiple interfaces with spaces, e.g. "eth0 eth1". + INTERFACESv4="lstack" + INTERFACESv6="" + +/etc/ssh/sshd\_config: + + # What ports, IPs and protocols we listen for + Port <REDACTED-high-number-port> + # Change to no to disable tunnelled clear text passwords + PasswordAuthentication no + +For your own comfort and safety, do NOT allow password authentication +and do not answer ssh requests on port 22. Experience shows several hack +attempts per hour on port 22, but none (ever) on random high-number +ports. + +Systemd configuration +--------------------- + +In a typical home-gateway use-case, vpp owns the one-and-only WAN link +with a prayer of reaching the public internet. Simple things like +updating distro software requires use of the \"lstack\" interface +created above, and configuring a plausible upstream DNS name resolver. + +Configure /etc/systemd/resolved.conf as follows. + +/etc/systemd/resolved.conf: + + [Resolve] + DNS=8.8.8.8 + #FallbackDNS= + #Domains= + #LLMNR=no + #MulticastDNS=no + #DNSSEC=no + #Cache=yes + #DNSStubListener=yes + +Netplan configuration +--------------------- + +If you want to configure a static IP address on one of your home-gateway +Ethernet ports on Ubuntu 18.04, you\'ll need to configure netplan. +Netplan is relatively new. It and the network manager GUI and can be +cranky. In the configuration shown below, +s/enp4s0/\<your-interface\>/\... + +/etc/netplan-01-netcfg.yaml: + + # This file describes the network interfaces available on your system + # For more information, see netplan(5). + network: + version: 2 + renderer: networkd + ethernets: + enp4s0: + dhcp4: no + addresses: [192.168.2.254/24] + gateway4: 192.168.2.100 + nameservers: + search: [my.local] + addresses: [8.8.8.8] + +/etc/systemd/network-10.enp4s0.network: + + [Match] + Name=enp4s0 + + [Link] + RequiredForOnline=no + + [Network] + ConfigureWithoutCarrier=true + Address=192.168.2.254/24 + +Note that we\'ve picked an IP address for the home gateway which is on +an independent unrouteable subnet. This is handy for installing (and +possibly reverting) new vpp software. + +VPP Configuration Files +----------------------- + +Here we see a nice use-case for the vpp debug CLI macro expander: + +/setup.gate: + + define HOSTNAME vpp1 + define TRUNK GigabitEthernet3/0/0 + + comment { Specific MAC address yields a constant IP address } + define TRUNK_MACADDR 48:f8:b3:00:01:01 + define BVI_MACADDR 48:f8:b3:01:01:02 + + comment { inside subnet 192.168.<inside_subnet>.0/24 } + define INSIDE_SUBNET 1 + + define INSIDE_PORT1 GigabitEthernet6/0/0 + define INSIDE_PORT2 GigabitEthernet6/0/1 + define INSIDE_PORT3 GigabitEthernet8/0/0 + define INSIDE_PORT4 GigabitEthernet8/0/1 + + comment { feature selections } + define FEATURE_NAT44 comment + define FEATURE_CNAT uncomment + define FEATURE_DNS comment + define FEATURE_IP6 comment + define FEATURE_MACTIME uncomment + + exec /setup.tmpl + +/setup.tmpl: + + show macro + + set int mac address $(TRUNK) $(TRUNK_MACADDR) + set dhcp client intfc $(TRUNK) hostname $(HOSTNAME) + set int state $(TRUNK) up + + bvi create instance 0 + set int mac address bvi0 $(BVI_MACADDR) + set int l2 bridge bvi0 1 bvi + set int ip address bvi0 192.168.$(INSIDE_SUBNET).1/24 + set int state bvi0 up + + set int l2 bridge $(INSIDE_PORT1) 1 + set int state $(INSIDE_PORT1) up + set int l2 bridge $(INSIDE_PORT2) 1 + set int state $(INSIDE_PORT2) up + set int l2 bridge $(INSIDE_PORT3) 1 + set int state $(INSIDE_PORT3) up + set int l2 bridge $(INSIDE_PORT4) 1 + set int state $(INSIDE_PORT4) up + + comment { dhcp server and host-stack access } + create tap host-if-name lstack host-ip4-addr 192.168.$(INSIDE_SUBNET).2/24 host-ip4-gw 192.168.$(INSIDE_SUBNET).1 + set int l2 bridge tap0 1 + set int state tap0 up + + service restart isc-dhcp-server + + $(FEATURE_NAT44) { nat44 enable users 50 user-sessions 750 sessions 63000 } + $(FEATURE_NAT44) { nat44 add interface address $(TRUNK) } + $(FEATURE_NAT44) { set interface nat44 in bvi0 out $(TRUNK) } + + $(FEATURE_NAT44) { nat44 add static mapping local 192.168.$(INSIDE_SUBNET).2 22432 external $(TRUNK) 22432 tcp } + + $(FEATURE_CNAT) { cnat snat with $(TRUNK) } + $(FEATURE_CNAT) { set interface feature bvi0 ip4-cnat-snat arc ip4-unicast } + $(FEATURE_CNAT) { cnat translation add proto tcp real $(TRUNK) 22432 to -> 192.168.$(INSIDE_SUBNET).2 22432 } + $(FEATURE_CNAT) { $(FEATURE_DNS) { cnat translation add proto udp real $(TRUNK) 53053 to -> 192.168.$(INSIDE_SUBNET).1 53053 } } + + $(FEATURE_DNS) { $(FEATURE_NAT44) { nat44 add identity mapping external $(TRUNK) udp 53053 } } + $(FEATURE_DNS) { bin dns_name_server_add_del 8.8.8.8 } + $(FEATURE_DNS) { bin dns_enable_disable } + + comment { set ct6 inside $(TRUNK) } + comment { set ct6 outside $(TRUNK) } + + $(FEATURE_IP6) { set int ip6 table $(TRUNK) 0 } + $(FEATURE_IP6) { ip6 nd address autoconfig $(TRUNK) default-route } + $(FEATURE_IP6) { dhcp6 client $(TRUNK) } + $(FEATURE_IP6) { dhcp6 pd client $(TRUNK) prefix group hgw } + $(FEATURE_IP6) { set ip6 address bvi0 prefix group hgw ::1/64 } + $(FEATURE_IP6) { ip6 nd address autoconfig bvi0 default-route } + comment { iPhones seem to need lots of RA messages... } + $(FEATURE_IP6) { ip6 nd bvi0 ra-managed-config-flag ra-other-config-flag ra-interval 5 3 ra-lifetime 180 } + comment { ip6 nd bvi0 prefix 0::0/0 ra-lifetime 100000 } + + + $(FEATURE_MACTIME) { bin mactime_add_del_range name cisco-vpn mac a8:b4:56:e1:b8:3e allow-static } + $(FEATURE_MACTIME) { bin mactime_add_del_range name old-mac mac <redacted> allow-static } + $(FEATURE_MACTIME) { bin mactime_add_del_range name roku mac <redacted> allow-static } + $(FEATURE_MACTIME) { bin mactime_enable_disable $(INSIDE_PORT1) } + $(FEATURE_MACTIME) { bin mactime_enable_disable $(INSIDE_PORT2) } + $(FEATURE_MACTIME) { bin mactime_enable_disable $(INSIDE_PORT3) } + $(FEATURE_MACTIME) { bin mactime_enable_disable $(INSIDE_PORT4) } + +Installing new vpp software +--------------------------- + +If you\'re **sure** that a given set of vpp Debian packages will install +and work properly, you can install them while logged into the gateway +via the lstack / nat path. This procedure is a bit like standing on a +rug and yanking it. If all goes well, a perfect back-flip occurs. If +not, you may wish that you\'d configured a static IP address on a +reserved Ethernet interface as described above. + +Installing a new vpp image via ssh to 192.168.1.2: + + # nohup dpkg -i *.deb >/dev/null 2>&1 & + +Within a few seconds, the inbound ssh connection SHOULD begin to respond +again. If it does not, you\'ll have to debug the issue(s). + +Reasonably Robust Remote Software Installation +---------------------------------------------- + +Here are a couple of scripts which yield a reasonably robust software +installation scheme. + +### Build-host script + + #!/bin/bash + + buildroot=/scratch/vpp-workspace/build-root + if [ $1x = "testx" ] ; then + subdir="test" + ipaddr="192.168.2.48" + elif [ $1x = "foox" ] ; then + subdir="foo" + ipaddr="foo.some.net" + elif [ $1x = "barx" ] ; then + subdir="bar" + ipaddr="bar.some.net" + else + subdir="test" + ipaddr="192.168.2.48" + fi + + echo Save current software... + ssh -p 22432 $ipaddr "rm -rf /gate_debians.prev" + ssh -p 22432 $ipaddr "mv /gate_debians /gate_debians.prev" + ssh -p 22432 $ipaddr "mkdir /gate_debians" + echo Copy new software to the gateway... + scp -P 22432 $buildroot/*.deb $ipaddr:/gate_debians + echo Install new software... + ssh -p 22432 $ipaddr "nohup /usr/local/bin/vpp-swupdate > /dev/null 2>&1 &" + + for i in 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 + do + echo Wait for $i seconds... + sleep 1 + done + + echo Try to access the device... + + ssh -p 22432 -o ConnectTimeout=10 $ipaddr "tail -20 /var/log/syslog | grep Ping" + if [ $? == 0 ] ; then + echo Access test OK... + else + echo Access failed, wait for configuration restoration... + for i in 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 + do + echo Wait for $i seconds... + sleep 1 + done + echo Retry access test + ssh -p 22432 -o ConnectTimeout=10 $ipaddr "tail -20 /var/log/syslog | grep Ping" + if [ $? == 0 ] ; then + echo Access test OK, check syslog on the device + exit 1 + else + echo Access test still fails, manual intervention required. + exit 2 + fi + fi + + exit 0 + +### Target script + + #!/bin/bash + + logger "About to update vpp software..." + cd /gate_debians + service vpp stop + sudo dpkg -i *.deb >/dev/null 2>&1 & + sleep 20 + logger "Ping connectivity test..." + for i in 1 2 3 4 5 6 7 8 9 10 + do + ping -4 -c 1 yahoo.com + if [ $? == 0 ] ; then + logger "Ping test OK..." + exit 0 + fi + done + + logger "Ping test NOT OK, restore old software..." + rm -rf /gate_debians + mv /gate_debians.prev /gate_debians + cd /gate_debians + nohup sudo dpkg -i *.deb >/dev/null 2>&1 & + sleep 20 + logger "Repeat connectivity test..." + for i in 1 2 3 4 5 6 7 8 9 10 + do + ping -4 -c 1 yahoo.com + if [ $? == 0 ] ; then + logger "Ping test OK after restoring old software..." + exit 0 + fi + done + + logger "Ping test FAIL after restoring software, manual intervention required" + exit 2 + +Note that the target script **requires** that the userid which invokes +it will manage to "sudo dpkg ..." without further authentication. If +you're uncomfortable with the security implications of that +requirement, you'll need to solve the problem a different +way. Strongly suggest configuring sshd as described above to minimize +risk. + + +Testing new software +-------------------- + +If you frequently test new home gateway software, it may be handy to set +up a test gateway behind your production gateway. This testing +methodology reduces complaints from family members, to name one benefit. + +Change the inside network (dhcp) subnet from 192.168.1.0/24 to +192.168.3.0/24, change the (dhcp) advertised router to 192.168.3.1, +reconfigure the vpp tap interface addresses onto the 192.168.3.0/24 +subnet, and you should be all set. + +This scenario nats traffic twice: first, from the 192.168.3.0/24 network +onto the 192.168.1.0/24 network. Next, from the 192.168.1.0/24 network +onto the public internet. + +Patches +------- + +You\'ll want this addition to src/vpp/vnet/main.c to add the \"service +restart isc-dhcp-server" and \"service restart vpp\" commands: + + #include <sys/types.h> + #include <sys/wait.h> + + static int + mysystem (char *cmd) + { + int rv = 0; + + if (fork()) + wait (&rv); + else + execl("/bin/sh", "sh", "-c", cmd); + + if (rv != 0) + clib_unix_warning ("('%s') child process returned %d", cmd, rv); + return rv; + } + + static clib_error_t * + restart_isc_dhcp_server_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) + { + int rv; + + /* Wait a while... */ + vlib_process_suspend (vm, 2.0); + + rv = mysystem("/usr/sbin/service isc-dhcp-server restart"); + + vlib_cli_output (vm, "Restarted the isc-dhcp-server, status %d...", rv); + return 0; + } + + /* *INDENT-OFF* */ + VLIB_CLI_COMMAND (restart_isc_dhcp_server_command, static) = + { + .path = "service restart isc-dhcp-server", + .short_help = "restarts the isc-dhcp-server", + .function = restart_isc_dhcp_server_command_fn, + }; + /* *INDENT-ON* */ + + static clib_error_t * + restart_dora_tunnels_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) + { + int rv; + + /* Wait three seconds... */ + vlib_process_suspend (vm, 3.0); + + rv = mysystem ("/usr/sbin/service dora restart"); + + vlib_cli_output (vm, "Restarted the dora tunnel service, status %d...", rv); + return 0; + } + + /* *INDENT-OFF* */ + VLIB_CLI_COMMAND (restart_dora_tunnels_command, static) = + { + .path = "service restart dora", + .short_help = "restarts the dora tunnel service", + .function = restart_dora_tunnels_command_fn, + }; + /* *INDENT-ON* */ + + static clib_error_t * + restart_vpp_service_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) + { + (void) mysystem ("/usr/sbin/service vpp restart"); + return 0; + } + + /* *INDENT-OFF* */ + VLIB_CLI_COMMAND (restart_vpp_service_command, static) = + { + .path = "service restart vpp", + .short_help = "restarts the vpp service, be careful what you wish for", + .function = restart_vpp_service_command_fn, + }; + /* *INDENT-ON* */ + +Using the time-based mac filter plugin +-------------------------------------- + +If you need to restrict network access for certain devices to specific +daily time ranges, configure the \"mactime\" plugin. Add it to the list +of enabled plugins in /etc/vpp/startup.conf, then enable the feature on +the NAT \"inside\" interfaces: + + bin mactime_enable_disable GigabitEthernet0/14/0 + bin mactime_enable_disable GigabitEthernet0/14/1 + ... + +Create the required src-mac-address rule database. There are 4 rule +entry types: + +- allow-static - pass traffic from this mac address +- drop-static - drop traffic from this mac address +- allow-range - pass traffic from this mac address at specific times +- drop-range - drop traffic from this mac address at specific times + +Here are some examples: + + bin mactime_add_del_range name alarm-system mac 00:de:ad:be:ef:00 allow-static + bin mactime_add_del_range name unwelcome mac 00:de:ad:be:ef:01 drop-static + bin mactime_add_del_range name not-during-business-hours mac <mac> drop-range Mon - Fri 7:59 - 18:01 + bin mactime_add_del_range name monday-busines-hours mac <mac> allow-range Mon 7:59 - 18:01 diff --git a/docs/usecases/homegateway.rst b/docs/usecases/homegateway.rst deleted file mode 100644 index f419c4ecb29..00000000000 --- a/docs/usecases/homegateway.rst +++ /dev/null @@ -1,285 +0,0 @@ -.. _homegateway: - -.. toctree:: - -Using VPP as a Home Gateway -=========================== - -Vpp running on a small system (with appropriate NICs) makes a fine -home gateway. The resulting system performs far in excess of -requirements: a TAG=vpp_debug image runs at a vector size of ~1.2 -terminating a 150-mbit down / 10-mbit up cable modem connection. - -At a minimum, install sshd and the isc-dhcp-server. If you prefer, you -can use dnsmasq. - -Configuration files -------------------- - -/etc/vpp/startup.conf:: - - unix { - nodaemon - log /var/log/vpp/vpp.log - full-coredump - cli-listen /run/vpp/cli.sock - startup-config /setup.gate - poll-sleep-usec 100 - gid vpp - } - api-segment { - gid vpp - } - dpdk { - dev 0000:03:00.0 - dev 0000:14:00.0 - etc. - } - - plugins { - ## Disable all plugins, selectively enable specific plugins - ## YMMV, you may wish to enable other plugins (acl, etc.) - plugin default { disable } - plugin dpdk_plugin.so { enable } - plugin nat_plugin.so { enable } - ## if you plan to use the time-based MAC filter - plugin mactime_plugin.so { enable } - } - -/etc/dhcp/dhcpd.conf:: - - subnet 192.168.1.0 netmask 255.255.255.0 { - range 192.168.1.10 192.168.1.99; - option routers 192.168.1.1; - option domain-name-servers 8.8.8.8; - } - -If you decide to enable the vpp dns name resolver, substitute -192.168.1.2 for 8.8.8.8 in the dhcp server configuration. - -/etc/default/isc-dhcp-server:: - - # On which interfaces should the DHCP server (dhcpd) serve DHCP requests? - # Separate multiple interfaces with spaces, e.g. "eth0 eth1". - INTERFACESv4="lstack" - INTERFACESv6="" - -/etc/ssh/sshd_config:: - - # What ports, IPs and protocols we listen for - Port <REDACTED-high-number-port> - # Change to no to disable tunnelled clear text passwords - PasswordAuthentication no - -For your own comfort and safety, do NOT allow password authentication -and do not answer ssh requests on port 22. Experience shows several -hack attempts per hour on port 22, but none (ever) on random -high-number ports. - -vpp configuration (/setup.gate):: - - comment { This is the WAN interface } - set int state GigabitEthernet3/0/0 up - comment { set int mac address GigabitEthernet3/0/0 mac-to-clone-if-needed } - set dhcp client intfc GigabitEthernet3/0/0 hostname vppgate - - comment { Create a BVI loopback interface} - loop create - set int l2 bridge loop0 1 bvi - set int ip address loop0 192.168.1.1/24 - set int state loop0 up - - comment { Add more inside interfaces as needed ... } - set int l2 bridge GigabitEthernet0/14/0 1 - set int state GigabitEthernet0/14/0 up - - comment { dhcp server and host-stack access } - create tap host-if-name lstack host-ip4-addr 192.168.1.2/24 host-ip4-gw 192.168.1.1 - set int l2 bridge tap0 1 - set int state tap0 up - - comment { Configure NAT} - nat44 add interface address GigabitEthernet3/0/0 - set interface nat44 in loop0 out GigabitEthernet3/0/0 - - comment { allow inbound ssh to the <REDACTED-high-number-port> } - nat44 add static mapping local 192.168.1.2 <REDACTED> external GigabitEthernet3/0/0 <REDACTED> tcp - - comment { if you want to use the vpp DNS server, add the following } - comment { Remember to adjust the isc-dhcp-server configuration appropriately } - comment { nat44 add identity mapping external GigabitEthernet3/0/0 udp 53053 } - comment { bin dns_name_server_add_del 8.8.8.8 } - comment { bin dns_name_server_add_del 68.87.74.166 } - comment { bin dns_enable_disable } - comment { see patch below, which adds these commands } - service restart isc-dhcp-server - -Systemd configuration ---------------------- - -In a typical home-gateway use-case, vpp owns the one-and-only WAN link -with a prayer of reaching the public internet. Simple things like -updating distro software requires use of the "lstack" interface -created above, and configuring a plausible upstream DNS name resolver. - -Configure /etc/systemd/resolved.conf as follows. - -/etc/systemd/resolved.conf:: - - [Resolve] - DNS=8.8.8.8 - #FallbackDNS= - #Domains= - #LLMNR=no - #MulticastDNS=no - #DNSSEC=no - #Cache=yes - #DNSStubListener=yes - -Netplan configuration ---------------------- - -If you want to configure a static IP address on one of your -home-gateway Ethernet ports on Ubuntu 18.04, you'll need to configure -netplan. Netplan is relatively new. It and the network manager GUI and -can be cranky. In the configuration shown below, -s/enp4s0/<your-interface>/... - -/etc/netplan-01-netcfg.yaml:: - - # This file describes the network interfaces available on your system - # For more information, see netplan(5). - network: - version: 2 - renderer: networkd - ethernets: - enp4s0: - dhcp4: no - addresses: [192.168.2.254/24] - gateway4: 192.168.2.100 - nameservers: - search: [my.local] - addresses: [8.8.8.8] - -/etc/systemd/network-10.enp4s0.network:: - - [Match] - Name=enp4s0 - - [Link] - RequiredForOnline=no - - [Network] - ConfigureWithoutCarrier=true - Address=192.168.2.254/24 - -Note that we've picked an IP address for the home gateway which is on -an independent unrouteable subnet. This is handy for installing (and -possibly reverting) new vpp software. - -Installing new vpp software ---------------------------- - -If you're **sure** that a given set of vpp Debian packages will -install and work properly, you can install them while logged into the -gateway via the lstack / nat path. This procedure is a bit like -standing on a rug and yanking it. If all goes well, a perfect -back-flip occurs. If not, you may wish that you'd configured a static -IP address on a reserved Ethernet interface as described above. - -Installing a new vpp image via ssh to 192.168.1.2:: - - # nohup dpkg -i *.deb >/dev/null 2>&1 & - -Within a few seconds, the inbound ssh connection SHOULD begin to respond -again. If it does not, you'll have to debug the issue(s). - -Testing new software --------------------- - -If you frequently test new home gateway software, it may be handy to -set up a test gateway behind your production gateway. This testing -methodology reduces complaints from family members, to name one benefit. - -Change the inside network (dhcp) subnet from 192.168.1.0/24 to -192.168.3.0/24, change the (dhcp) advertised router to 192.168.3.1, -reconfigure the vpp tap interface addresses onto the 192.168.3.0/24 -subnet, and you should be all set. - -This scenario nats traffic twice: first, from the 192.168.3.0/24 -network onto the 192.168.1.0/24 network. Next, from the 192.168.1.0/24 -network onto the public internet. - -Patches -------- - -You'll need this patch to add the "service restart" command:: - - diff --git a/src/vpp/vnet/main.c b/src/vpp/vnet/main.c - index 6e136e19..69189c93 100644 - --- a/src/vpp/vnet/main.c - +++ b/src/vpp/vnet/main.c - @@ -18,6 +18,8 @@ - #include <vlib/unix/unix.h> - #include <vnet/plugin/plugin.h> - #include <vnet/ethernet/ethernet.h> - +#include <vnet/ip/ip4_packet.h> - +#include <vnet/ip/format.h> - #include <vpp/app/version.h> - #include <vpp/api/vpe_msg_enum.h> - #include <limits.h> - @@ -400,6 +402,63 @@ VLIB_CLI_COMMAND (test_crash_command, static) = { - - #endif - - +static clib_error_t * - +restart_isc_dhcp_server_command_fn (vlib_main_t * vm, - + unformat_input_t * input, - + vlib_cli_command_t * cmd) - +{ - + int rv __attribute__((unused)); - + /* Wait three seconds... */ - + vlib_process_suspend (vm, 3.0); - + - + rv = system ("/usr/sbin/service isc-dhcp-server restart"); - + - + vlib_cli_output (vm, "Restarted the isc-dhcp-server..."); - + return 0; - +} - + - +/* *INDENT-OFF* */ - +VLIB_CLI_COMMAND (restart_isc_dhcp_server_command, static) = { - + .path = "service restart isc-dhcp-server", - + .short_help = "restarts the isc-dhcp-server", - + .function = restart_isc_dhcp_server_command_fn, - +}; - +/* *INDENT-ON* */ - + - - -Using the time-based mac filter plugin --------------------------------------- - -If you need to restrict network access for certain devices to specific -daily time ranges, configure the "mactime" plugin. Add it to the list -of enabled plugins in /etc/vpp/startup.conf, then enable the feature -on the NAT "inside" interfaces:: - - bin mactime_enable_disable GigabitEthernet0/14/0 - bin mactime_enable_disable GigabitEthernet0/14/1 - ... - -Create the required src-mac-address rule database. There are 4 rule -entry types: - -* allow-static - pass traffic from this mac address -* drop-static - drop traffic from this mac address -* allow-range - pass traffic from this mac address at specific times -* drop-range - drop traffic from this mac address at specific times - -Here are some examples:: - - bin mactime_add_del_range name alarm-system mac 00:de:ad:be:ef:00 allow-static - bin mactime_add_del_range name unwelcome mac 00:de:ad:be:ef:01 drop-static - bin mactime_add_del_range name not-during-business-hours mac <mac> drop-range Mon - Fri 7:59 - 18:01 - bin mactime_add_del_range name monday-busines-hours mac <mac> allow-range Mon 7:59 - 18:01 diff --git a/docs/usecases/index.rst b/docs/usecases/index.rst index 062b225732b..21f5b140fe7 100644 --- a/docs/usecases/index.rst +++ b/docs/usecases/index.rst @@ -15,7 +15,7 @@ extensive list, but should give a sampling of the many features contained in FD. vmxnet3 acls vppcloud - homegateway + hgw contiv/index.rst networksim webapp |