Hi Rick,
Sorry for the confusion. The issues raised are for IPv6. IPv4 is working.
1) The configuration to advertise A.A.A.0/24 to your BGP neighbor looks right. But you tell us that
"I don't see the advertised subnet when I query it from BGP Lookup table."
My first question about this is what lookup table are you using.
My second question about this is to check on your BGP neighbor. You can use the show ip bop neighbor command to make sure that the neighbor is established. You can use the show ip bop neighbor advertised-route to check that you are advertising the route to the neighbor.
This issue is IPv6. I used the BGP Lookup table for my AS number via this website https://www.dan.me.uk/bgplookup.
My subnets are advertised correctly
Router#sh bgp ipv6 uni nei CC:CC:CC::29 advertised-routes
BGP table version is 9, local router ID is RID.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> AA:AA::AA:C000::/50
:: 0 32768 i
Total number of prefixes 1
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Router#sh bgp all
For address family: IPv4 Unicast
BGP table version is 30, local router ID is RID.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
r> 0.0.0.0 B.B.B.133 1 0 10204 i
*> A.A.A.0/24 0.0.0.0 0 32768 i
For address family: IPv6 Unicast
BGP table version is 9, local router ID is RID.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> ::/0 BB:BB:BB::29
1 0 10204 i
*> AA:AA:AA:C000::/50
:: 0 32768 i
For address family: IPv4 Multicast
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2) You tell us that
"I also could not ping the interface from Internet"
That is concerning. Can you confirm that the interface is up and available using the show ip interface brief command? Can you ping the neighbor? If you use the command show arp do you see a mac address for the neighbor?
This is also for IPv6. Though the advertisement look right. I don't have Internet access.
I can ping the neighbor. Only ping to my IP has problems when I change the segment to /50. When it is /48, it works!.
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3) You tell us that
"a PC connected to this segment has no Internet access"
If the result of 2 is that there is a problem accessing the neighbor then we know why a PC has no Internet access. If the result of 2 is that the neighbor is working then we need to look at another possible cause of the PC issue. You have not shown us that you are configuring address translation. Can you show us what you have configured for address translation?
This is also IPv6, same issue with issue above.
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4) You have 2 static routes configured for subnets for customers with a notation not sure that this works. The syntax for the static routes appears to be correct. So the questions about this are what is the device at A.A.A.2? Does this device have layer 3 forwarding logic to those customers and does this device have IP connectivity to these customers? And do these customers have routing configured with this device as their gateway?
A.A.A.2 is Cisco 3750 layer 3 switch. Below are the config. This config works for ipv4 so far. IPv6 bcos of issues with router config.
ip routing
interface GigabitEthernet1/0/1 (Router connects here)
no switchport
ip address A.A.A.2 255.255.255.248
!
interface GigabitEthernet1/0/2 (Customer connects here)
no switchport
ip address A.A.A.17 255.255.255.240
!
ip route 0.0.0.0 0.0.0.0 A.A.A.2
Thanks in advance for your guidance.
