OpenWRT: quagga bgp
sumber: https://martybugs.net/wireless/openwrt/quagga.cgi
edit /etc/quagga/zebra.conf:
hostname jandakot ! define password for bgpd daemon (for connecting to daemon via telnet) password insertpasswordhere ! define enable password for bgpd daemon (for connecting to daemon via telnet) enable password insertpasswordhere ! ! list interfaces interface eth1 interface vlan0 interface vlan1 interface lo ! ! null route to consolidate all subnets in this /24 ip route 10.60.86.0/24 Null0 255 ! line vty
edit /etc/quagga/bgpd.conf:
hostname jandakot ! define password for bgpd daemon (for connecting to daemon via telnet) password insertpasswordhere ! define enable password for bgpd daemon (for connecting to daemon via telnet) enable password insertpasswordhere ! ! define router's BGP AS router bgp 65086 ! define ID of router - we use IP of the router bgp router-id 10.60.86.1 ! define network address that this router knows about network 10.60.86.0/24 ! ! armadale neighbour neighbor 10.60.74.253 remote-as 65074 neighbor 10.60.74.253 soft-reconfiguration inbound neighbor 10.60.74.253 distribute-list freenet in neighbor 10.60.74.253 distribute-list freenet out ! ! willetton neighbour neighbor 10.60.84.253 remote-as 65084 neighbor 10.60.84.253 soft-reconfiguration inbound neighbor 10.60.84.253 distribute-list freenet in neighbor 10.60.84.253 distribute-list freenet out ! ! ACLs to stop people from propagating routes to their own private networks access-list freenet permit 10.48.0.0/12 access-list freenet deny any ! line vty exec-timeout 20160 0
edit /etc/init.d/S49quagga
DAEMONS="zebra bgpd"
Debugging Quagga
nc localhost 2605
Hello, this is Quagga (version 0.98.4). Copyright 1996-2005 Kunihiro Ishiguro, et al.
User Access Verification
Password: insertpasswordhere
jandakot>
jandakot> show ip bgp summary
BGP router identifier 10.60.86.1, local AS number 65086 6 BGP AS-PATH entries 0 BGP community entries
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.60.74.253 4 65074 10525 10232 0 0 0 6d21h24m 4 10.60.84.253 4 65084 10013 10181 0 0 0 6d22h49m 2
Total number of neighbors 2
This output provides details about how long each neighbour has been connected, and how many routes the WRT has received from each neighbour (in this example, 4 routes from the first neighbour, and 2 from the second).
The Up/Down status shows the time that that neighbour has been connected. If it shows anything other than a time, it means the bgpd daemon has not successfully connected to that neighbour, so check the bgpd configuration at both ends.
To view the BGP routing table, run the following commend in the bgpd telnet session:
jandakot> show ip bgp
and you should get something similar to this output:
BGP table version is 0, local router ID is 10.60.86.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path *> 10.60.68.0/24 10.60.74.253 0 65074 65068 i *> 10.60.74.0/24 10.60.74.253 0 0 65074 i *> 10.60.82.0/24 10.60.74.253 0 65074 65082 i *> 10.60.84.0/24 10.60.84.253 0 0 65084 i *> 10.60.86.0/24 0.0.0.0 0 32768 i *> 10.60.113.0/24 10.60.84.253 0 65084 65113 i *> 10.64.0.0/12 10.60.74.253 0 0 65074 i Total number of prefixes 7
This view provides details of each route received via BGP, as well as the path to that route.
For example, from the output above, we can see that the route to 10.60.82.0/24 (SouthArmadale) goes via AS65074 (the ArmadaleAP router) and AS65082 (the SouthArmadale router), and the next hop with respect to Jandakot is 10.60.74.253, which is the IP address at the ArmadaleAP end of the ArmadaleAP-Jandakot link.
To finish the telnet session, just type exit.
Telnet to Zebra Daemon To telnet to the zebra daemon, run:
nc localhost 2601
and you'll be prompted for a password. You need to enter the first password that was defined in /etc/quagga/zebra.conf, and you'll then be rewarded with a prompt.
root@JANDAKOT-AP:~# nc localhost 2601
Hello, this is Quagga (version 0.98.4). Copyright 1996-2005 Kunihiro Ishiguro, et al.
User Access Verification
Password: insertpasswordhere
jandakot>
To view the status of the routing table, run the following:
jandakot> show ip route
and you should be rewarded with output similar to this:
Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,
B - BGP, > - selected route, * - FIB route
K>* 0.0.0.0/0 via 10.60.74.253, eth1 B>* 10.60.68.0/24 [20/0] via 10.60.74.253, eth1, 6d21h25m B>* 10.60.74.0/24 [20/0] via 10.60.74.253, eth1, 6d21h25m C>* 10.60.74.252/30 is directly connected, eth1 B>* 10.60.82.0/24 [20/0] via 10.60.74.253, eth1, 6d21h25m B>* 10.60.84.0/24 [20/0] via 10.60.84.253, vlan1, 6d22h50m C>* 10.60.84.252/30 is directly connected, vlan1 S 10.60.86.0/24 [255/0] is directly connected, Null0, bh C>* 10.60.86.0/28 is directly connected, vlan0 C>* 10.60.86.252/30 is directly connected, vlan1 B>* 10.60.113.0/24 [20/0] via 10.60.84.253, vlan1, 6d22h50m B>* 10.64.0.0/12 [20/0] via 10.60.74.253, eth1, 6d21h25m C>* 127.0.0.0/8 is directly connected, lo
Referensi