5.4 - Test for R4 in solutions guide does not work
The Solutions Guide has the following test on R4:
ping vrf XYZ321 18.104.22.168 source ethernet 0/1
I could not get this to work on R4 using 12.4(23) IOS; however, I was able to get a device on the Vlan4 network with a 10.1.4.223 address, and I could ping all the AS54 addresses from there. I've had other issues in the past with NAT when sourcing traffic from the router doing the actual NAT.
Pro Inside global Inside local Outside local Outside global
icmp 22.214.171.124:21 10.1.4.223:21 126.96.36.199:21 188.8.131.52:21