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nhrpd: use hop count 1 for registration requests

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Cisco has a bug that it rejects packets with zero hop count.
Use one to avoid potential forwarding of registration requests.

Fixes #951

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
This commit is contained in:
Timo Teräs 2017-08-17 16:55:43 +03:00
parent f66bd13f3c
commit ef9329ac02
1 changed files with 1 additions and 1 deletions
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2
nhrpd/nhrp_nhs.c
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@ -171,7 +171,7 @@ static int nhrp_reg_send_req(struct thread *t)
zb = zbuf_alloc(1400);
hdr = nhrp_packet_push(zb, NHRP_PACKET_REGISTRATION_REQUEST, &nifp->nbma, &if_ad->addr, dst_proto);
hdr->hop_count = 0;
hdr->hop_count = 1;
if (!(if_ad->flags & NHRP_IFF_REG_NO_UNIQUE))
hdr->flags |= htons(NHRP_FLAG_REGISTRATION_UNIQUE);