Couple of days ago we try to implement bgp between two isps, everything seems to working but somehow some users were not able to get into our network. please take a look on traceroute:
C:\Users\dmars.MA>tracert 204.90.52.106
1 1 ms 1 ms 1 ms 192.168.1.1
2 * * * Request timed out.
3 8 ms 10 ms 11 ms
ge-3-16-ur02.royaloak.mi.michigan.comcast.net [68.85.235.177]
4 12 ms 10 ms 13 ms
te-9-2-ur03.royaloak.mi.michigan.comcast.net [68.87.191.18]
5 12 ms 9 ms 11 ms
te-0-7-0-6-ar01.pontiac.mi.michigan.comcast.net[68.85.222.66]
6 21 ms 23 ms 25 ms
pos-2-1-0-0-cr01.chicago.il.ibone.comcast.net [68.86.90.109]
7 28 ms 24 ms 23 ms
pos-0-0-0-0-pe01.350ecermak.il.ibone.comcast.net [68.86.86.34]
8 30 ms 23 ms 26 ms 192.205.37.9
9 31 ms 34 ms 30 ms cr1.cgcil.ip.att.net [12.122.84.50]
10 31 ms 33 ms 47 ms cr81.dtrmi.ip.att.net [12.123.139.158]
11 30 ms 31 ms 30 ms gar9.dtrmi.ip.att.net [12.122.102.13]
12 29 ms 30 ms 31 ms 12.87.190.18 (AT&T router)
13 * 33 ms 30 ms 12.51.172.2 (6509 Chassis)
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * 33 ms * admin.starwoodcms.com [204.90.52.106]
19 33 ms * * admin.starwoodcms.com [204.90.52.106]
20 * * * Request timed out.
21 * * * Request timed out.
22 12.51.172.2 reports: Destination host unreachable.
Whereas some users from different location and same service provider were able to connect.
One thing I noticed when I add a static route user ip address to my config then it work?
0.0.0.0 0.0.0.0 user ip
Let me know if I can provide any more details.
currently bgp turned off, because some users were not able to connect our network.
Only one DS3 is working right now and I am collecting information again to make sure second time dont get into same problem...
This is L3 network, and partial routes enable from both ISPs (AT&T and Cavalier).
