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Cisco > Cisco Security exams > Ipsec configuration

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Author Ipsec configuration
wimpie
Junior Member
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Registered: Oct 2002
Location:
Country: Belgium
State:
Certifications: CCNA
Working on:

Total Posts: 12
Ipsec configuration

Hi ,

I was playing around with 2 cisco routers with an ipsec ios installed , wanted to configure them so they can encrypt the telnet traffic to each other . I was having difficulties with the ACL and the router came back with the following error message :
1:09:33: %CRYPTO-4-RECVD_PKT_INV_IDENTITY_ACL: ipsec check access: identity not allowed by ACL

I checked out the cisco website and there they said that other traffic was being passed also by the SA ....

I added a rule in the ACL which would encrypt icmp traffic also and this worked fine so my configuration is ok .

Question : Does anybody know what extra traffic he's putting in the SA when you do a telnet ?

regards
wim

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ZacDogg
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Registered: Mar 2002
Location: Minneapolis
Country: United States
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Certifications: A+, Net+, CCNA, CCNP, CCIE, CSS-1
Working on: another CCIE

Total Posts: 227

Are both of the access-lists referenced by the crypto-maps configured to encrypt identical traffic?

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wimpie
Junior Member
M




Registered: Oct 2002
Location:
Country: Belgium
State:
Certifications: CCNA
Working on:

Total Posts: 12

Yes,

and the encryption rule for the icmp traffic is also included in the same access-list

Extended IP access list 101
permit tcp host 200.0.0.202 host 200.0.0.200 eq telnet
permit tcp host 200.0.0.200 host 200.0.0.202 eq telnet
permit icmp host 200.0.0.200 host 200.0.0.202

I tried with this acl but it's not functioning .

thx
Wim

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